grantkemp

import Firebase
...
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        ...
        FirebaseApp.configure()

        if !UserDefaults.standard.bool(forKey: "launchedBefore")
        {
            UserDefaults.standard.set(true, forKey: "launchedBefore")
            GoogleAdsACService.app.adToAction(processAction: processActionExample)